Collapsible joint.



citizen ofthe United States,

srntrnsj PATENT onirica 1HERMA'LT.NW

To all'who'm, 'it may concern: Be it lniown that I, HERMAN W. MARTIN, a residingat Ilioii, in.theco`lmtyaof Herkimer and State-'of New York,f.haveinvented certain new and useful Improvements Collapsible Joints, of which .the following .is aspecifica'tion, reference be.

'ingha'd .therein to the' accompanying .drawlapsiblev joint and I do declare t at the fclv shown in the drawings :in which lowing isa full, clear., concise' andexact de# sptlon thereof, -suflicient to enable-.one s ed inthe artltoQmake and use the saine,

reference being had to the accompanying. drawings in which like lettersandnumerals My invention is shown inthe drawings as applicable. particularly .to ian automatic sprinkling device such as is. used `in factories 'and-the'like-tc check flres,"it becoming opera- .tive fatfa certain temperature {torelease a Waterf-plug" orl`valve. It-has a multitude yof own or'd'escribed. Various modifications of the inventionaare Figurey 1-is afront view showing a llug or valve and 'a.yoke, with'the'deviee t erebetween.l F`*. 2:` a side view lof` the samein s etion. l F1 ,--3 .is va side view of the parts formin thelock in artly'broken downpositio'iii ig. .4"is a si e viewofa modified con# struction, Fig. 5 `being-"1aview Aofjone ofits partsl. Figi v6 a viewiofaffurthervarietyV of construction," .a sideview-being v'shown in Figs. A14," 15 an Fig.` 7'." Figs. 8;and 9l are' views of a lmodified form.-` Figs. .10', 11jand 12'show a different form,- one ofy itsarts being shown inFig. 13.

d) 16 .are vie'ws 'of 'a different --water features but in an construction where the lock is secured against forces, theparticulars of the "construction being vpo'intedout y specification o f L etteraratena Patente 'Pivlitimled Febrry-G, 1 05. sei-mim. 245,073;

- assembled between the screpsan M i lily-invention relates .toi an im roved colprise bar l1, vintegral orotn .being a plied at a poii'itatipige plane o 1 bar 1. r jacent endjof the bar'1..1 i

and at the opposite endff other possible applications not particularly two may beemploye .asels-ewh wise held suitably to be regirse transference of asv much `of the lock,fas itis foundtliglltth be such that it .Will inevit colla l .avoi ing any bending o ryi -may be curved within certa their equivalents, and aregliellt gg i .i solder, `oreqbulvalent meangywlhgcgwvllnmg A "r Smtably Operate :at so'psiisdssieesstio heat -torelease the parts' tejlgfkmhjgggg Will then n alltOmatCally @imesh gf.;

thervalve to open. The;

,Y tends `ashere illustrated e; c7 gr pOmtS .ofthe/190k and esel-rs alstesalisre otherwise, which has at' one end which. forms an abutmentgfeijgtiiqiscrgiyi@ 'es vor the cord D asthe case may ,ethb f 's1 e? The upsesihs sa Y The main part of the clik to which it; may be solderen jetant?. man? 5 fi otherwise, which project b bar 1.. ,A sin le ug Illfyg'@ "9.1 @aan g-iici at@ passing throng an o eningin the'b el@ These lugs have faces. 5 Whig roject beyond that faceim Ear; When-'thebar and t 'el 1. ejgjnw'g .thus ybrought together latgI plapegg across the face of bar 1 anA aga stjtigesan lar face of lugs 4 where'it orggthegsm gerousv degree' of heat lis reatqhlg @im may take various forms, .sense f @Mango suggested, i 2; 1 f thedevice.`

` `The'purpose of the froml the solder orlike means give way and permit inopportu water.y Atthe-,sam'e time t teriorates and if it bears .thepgi7 e se' vand release thepl-,iig

cbmplete'collapse of the lo makethe faces 5 on a slan the lateral pressure under` i andere@ to the upset 3 will be borne by the latch 6, to. the fullest possible limit, while at' the same time, when the solder ismelted, the latch will easily and instantly be crowded out of lace.

5F01* this p ur ose I may make thev latc of a round bar w 'ch will have a rolling bearing both on the faces 5 and on the face of bar 1. Or it may takev the form of a plate as in other figures having beveled edges 6 (Fig. 7) bearing against the faces 5, or the edges `'nfia'ybe curved.. The twoparts are. so conf structed and fitted, in short, to sustain theeatest possible lateral'pressure, and permit' eeesca e of the. latch which re uires com arativey little support to hol it to the aces' ,5. The free and instantaneous collapse of the lock is assured by the limited surface to .which -the solder. is applied. Of course,.I do not limit myself to t eforms or other particulars shown in the drawin as many modifications can be .made Wit out gassmg from 'the field of my invention. ome possible lchanges are -sho'wn in the drawings.'V

In Figs. 6 and 7' is shown a latch which has a heel portion` 6l to be inserted in hole lain the bar, the heel being bent to engage the upperled e of the hole so that the latchwhen presse in place holdsthe bar 1 and the cli 2 together lengthwise.. Any movement oft e inclined heel of the latch to release: itself will prevent any friction' between the latch' and the lug'sfrom bindinglthe two and. will aid in .the escape of the late and the collapse of the lock, the"`latehoperat ing substantially as a roller lock'. i W'hlethe Vlugs 4 may be integral with clip- 2 they need not be, 'as is seen 1n Figs..8.,` 15. and 18 wherethey arein a separate clip, as 6,

"- floxsojthat thelatch maybev placed'on the opposite-side of the lock. The latch may have a `greater'orless'surface contact with the bar 1 to which it' isqt'o be soldered and on which it 'may slide whenreleased. Also -thelugs 4 rny .be integral -with the bar-'1, Fig. 19.v igs. 10 vto 19 showthe'lockand arts when constructed to resistnthe pullo posing' forces. T heclip'and the latch 'may 'eintegral, being each on one side of the bar (Fig. 10) which isu'pset at the end to hold4 the clip.' Or the clip 'and latch. a 'be se arate as 1n Fig." 15. The cli 66.0% 12 j may have .overturns 6d to ho d it slidmgly mounted on fthe bar. In short, the lock whchI lhave illustrated is a device which has certain elements which may be formed, combined, sepa- Arated and arranged in a variet of styles, ,cooperatingto produce a lock o the'necessary .strength and firmness, secured by, a roller. bearing automatically releasable.

What I claim as new, and desireto secure by Letters Patent, is:

1. A collapsible jointA comprising members ing-held in -clmed faces of the sai connecte the loc -hol fusible-at high temperature topermit the- I described,

the combination of'fmembers to form a oint normally collapsible and means to hol the disposed between` an abutment and a valve,

the said members being'held together .by a rolling member therebetween, the latter belace by a fusible material holding it to eacllfmember only at points removedfrom contact with the other member, substantially as described.

2. In .a collapsible joint, members disposed t'o be normally separa-ted b the action of ldistinct forces, and means .for olding the members together, said means comprising a 4locking member seated between one of .the

members and an op osite contact surface in y clined to said mem er and connected to the other member, each member being cutawayat plilntsf opposite to the contact point of the loc g'member with .the othermember to. expose the'lockng member to the direct a tion of'heat, substantially as shown.

f 3 In a collapsible joint, members posed to be normally separated by the action of distinctl forces, an escapement member. engaging 'atdifferent oints opposite inmembers and directly ex sed to heat at all points where not IdOto the adjacent member, anda soft'solder holding the escapementmember to one f.;.said members, substantially'as shown.

-41' In a collapsible joint, members nor' .mally separable under pressure applied to the joint, a' rolling .lock ada ted to be secured to .one member and holdlng thetwo together by engaging the .other by frictional contactV on .the inclined face thereof, and a soft solder `holding'the roller lock `to..one ofi-said members and being applied only at the oint where the lock contacts with but oneo said members, the other member being cut away at such points, substantially 'asshown 5. 'In al'device of the character described,

contact a locking means place between the fpron'gs and the said .opposite member, said ockmeansyand a f uslble material to hold means, substantially as described'. L .4 In ai evice of thecharacter described,'the

combination ofmembers tol form a joint nor'- 'mally collapsible, and means to .hold the vthe'combination of members -toform a 'cinta' 105* same from collapse, said-means comprising a clip slidably'- n lountedand haring prongs with inclined faces and a roller lock transl, verse the members and between theone' and the- 'rong ofthe other, and afusible solder g t e lock to one of lthe members and o f' the lock.` a device offthe character same from collapse, the said means com ris.--

formed with prongs With faces inclined to the In testimony whereof I affix my signature oher Ilembilgl", and allockingmember egal); in presence of two Witnesses. e to ormetiona yengagement Wit t e said prongs vend with the other memberto HERMAN W' MARTIN' 5 hold the said members together, rand a soft Wtnesses I solder applied to the looking member, sub- E. EVERETT RISLEY,

stantially as described. v f E. T, DE GIORGI. 

